In pictures: Kansas City Chiefs become back-to-back Super Bowl champions

Chiefs quarterback Patrick Mahomes finished with 333 throwing yards, two touchdowns and 66 running yards.

Kansas City Chiefs quarterback Patrick Mahomes celebrates with the Vince Lombardi Trophy (George Walker IV/AP) (AP)

The Kansas City Chiefs were crowned back-to-back Super Bowl champions after a 25-22 overtime win over the San Francisco 49ers in Las Vegas.

Here, the PA news agency takes a look at some of the best images from the showpiece event.